Collapsible flotation device with back support



FIG. 1 is a front perspective view of a collapsible flotation device with back support, according to an embodiment;

FIG. 2 is a top view of the collapsible flotation device with back support illustrated in FIG. 1;

FIG. 3 is a bottom view of the collapsible flotation device with back support illustrated in FIG. 1;

FIG. 4 is a left side view of the collapsible flotation device with back support illustrated in FIG. 1;

FIG. 5 is a right side view of the collapsible flotation device with back support illustrated in FIG. 1;

FIG. 6 is a rear view of the collapsible flotation device with back support illustrated in FIG. 1;

FIG. 7 is a front view of the collapsible flotation device with back support illustrated in FIG. 1;

FIG. 8 is a cross-sectional view of the collapsible flotation device with back support of FIG. 1 taken along line 8-8 in FIG. 2;

FIG. 9 is a front perspective view of a collapsible flotation device with back support, according to another embodiment;

FIG. 10 is a top view of the collapsible flotation device with back support illustrated in FIG. 9;

FIG. 11 is a bottom view of the collapsible flotation device with back support illustrated in FIG. 9;

FIG. 12 is a left side view of the collapsible flotation device with back support illustrated in FIG. 9;

FIG. 13 is a right side view of the collapsible flotation device with back support illustrated in FIG. 9;

FIG. 14 is a rear view of the collapsible flotation device with back support illustrated in FIG. 9;

FIG. 15 is a front view of the collapsible flotation device with back support illustrated in FIG. 9;

FIG. 16 is a cross-sectional view of the collapsible flotation device with back support of FIG. 9 taken along line 16-16 in FIG. 10;

FIG. 17 is a front perspective view of a collapsible flotation device with back support, according to another embodiment;

FIG. 18 is a top view of the collapsible flotation device with back support illustrated in FIG. 17;

FIG. 19 is a bottom view of the collapsible flotation device with back support illustrated in FIG. 17;

FIG. 20 is a left side view of the collapsible flotation device with back support illustrated in FIG. 17;

FIG. 21 is a right side view of the collapsible flotation device with back support illustrated in FIG. 17;

FIG. 22 is a rear view of the collapsible flotation device with back support illustrated in FIG. 17;

FIG. 23 is a front view of the collapsible flotation device with back support illustrated in FIG. 17; and,

FIG. 24 is a cross-sectional view of the collapsible flotation device with back support of FIG. 17 taken along line 24-24 in FIG. 18.

The broken lines are directed to environment and are for illustrative purposes only and form no part of the claimed design. The thin solid lines illustrate contour of the claimed design and are not a claimed surface pattern. The cross-hatching shown in the cross-sectional views of FIGS. 8, 16 and 24 are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a collapsible flotation device with back support, as shown and described. 